update crystal samples

Author: wing328

samples/client/petstore/crystal/spec/spec_helper.cr

@@ -1,11 +1,11 @@
-# OpenAPI Petstore
+# #OpenAPI Petstore
 #
-# This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+##This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
 #
-# The version of the OpenAPI document: 1.0.0
+#The version of the OpenAPI document: 1.0.0
 #
-# Generated by: https://openapi-generator.tech
-# Generator version: 7.13.0-SNAPSHOT
+#Generated by: https://openapi-generator.tech
+#Generator version: 7.13.0-SNAPSHOT
 #
 
 # load modules
@@ -17,7 +17,7 @@ require "../src/petstore"
 def assert_compilation_error(path : String, message : String) : Nil
   buffer = IO::Memory.new
   result = Process.run("crystal", ["run", "--no-color", "--no-codegen", path], error: buffer)
-  expect(result.success?).to be_false
-  expect(buffer.to_s).to contain message
+  result.success?.should be_false
+  buffer.to_s.should contain message
   buffer.close
 end